EP0449766B1 - Outillage pour enfoncer des éléments de fixation dans des matières dures - Google Patents

Outillage pour enfoncer des éléments de fixation dans des matières dures Download PDF

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Publication number
EP0449766B1
EP0449766B1 EP91810108A EP91810108A EP0449766B1 EP 0449766 B1 EP0449766 B1 EP 0449766B1 EP 91810108 A EP91810108 A EP 91810108A EP 91810108 A EP91810108 A EP 91810108A EP 0449766 B1 EP0449766 B1 EP 0449766B1
Authority
EP
European Patent Office
Prior art keywords
receiving body
rotary
drive
driving
fixing elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91810108A
Other languages
German (de)
English (en)
Other versions
EP0449766A1 (fr
Inventor
Josef Beck
Fritz Mark
Michael Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP0449766A1 publication Critical patent/EP0449766A1/fr
Application granted granted Critical
Publication of EP0449766B1 publication Critical patent/EP0449766B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/082—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a pellet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • B25D11/106—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool cam member and cam follower having the same shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/11—Means for driving the impulse member operated by combustion pressure generated by detonation of a cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles

Definitions

  • the invention relates to a device for driving fasteners into hard materials such as concrete, masonry, stone and the like.
  • DE-PS 28 49 139 proposes a method according to which the fastening element is driven into the material by means of powder force through the bottom of a prefabricated blind hole.
  • the disadvantage of this method lies in the high expenditure of time and manipulation.
  • the invention has for its object to provide a device with which, while avoiding the disadvantage of spalling, fasteners can be driven into hard materials with little expenditure of time and manipulation.
  • the object is achieved in that the device has a rotary drilling device and a bolt setting device.
  • This device can be used to drive fasteners into hard materials by imparting rotary motion to the fasteners to create a blind hole and then driving the fasteners into the end position using high-tension gases from the bolt-setting device.
  • a motor for example an electric motor, which expediently serves to drive the rotary drilling device device-side battery or from the mains.
  • the bolt setting device is advantageously driven in a known manner by means of high-tension gases, for example powder power.
  • a receiving body serving for the rotationally locking and axially displaceable receiving of the fastening elements is preferably provided.
  • the fastening elements interact fully with wall parts of the receiving body on the one hand, or that parts of the fastening elements interact with an additional element mounted in the receiving body.
  • drivers are provided in the receiving body for the rotationally locking reception of the fastening elements.
  • the drivers are formed, for example, by a polygonal contour in the receiving body, in which a corresponding polygonal part - for example the head or guide ring - of the fastening elements engages.
  • the receiving body is advantageously connected in a rotationally locking and axially displaceable manner to a drive element which can be rotated by the rotary drilling device.
  • a drive element which can be rotated by the rotary drilling device.
  • the two parts engage, for example with correspondingly designed driver contours.
  • the displaceability of the receiving body relative to the drive member enables the transmission of blows to the receiving body in the case of an axially immovable drive member.
  • the receiving body can be acted upon by a striker of a cam percussion mechanism of the rotary drilling device in order to achieve a high drilling progress even when the device is pressed down only slightly.
  • the strokes imparted by the racket to the receiving body are passed on to the fastening elements and superimpose the rotary movement of the Fasteners.
  • the cam percussion mechanism can work, for example, according to the spring-lift principle, wherein the mutually interacting cam rings can be located on mutually facing end faces of the drive element and the racket.
  • the receiving body advantageously has a recess for the passage of a part of a driving piston of the bolt-setting device which can be set in axial movement, for example by means of powder force.
  • the driving piston can thus act on the fastening elements with the part protruding through the recess, for example a shaft. After a drilling depth corresponding to approximately half the length of the shaft of the fastening element, the fastening elements can be driven into their end position.
  • a striker can be provided in the recess, which is connected to the receiving body in a rotationally locking and axially displaceable manner and can be acted upon by the driving piston and cooperates with parts of the fastening elements.
  • the axial movement of the driving piston can thereby be transmitted to the fastening elements via the striker, the striker and the fastening element being displaced relative to the receiving body.
  • the rotary movement can be transmitted from the receiving body to the fastening elements via the striker, which is why the striker expediently has drivers for rotationally receiving the fastening elements.
  • the drivers can be formed, for example, by a polygonal recess in the die, with which a polygonal extension is engaged at the rear free end of the fastening elements.
  • Rackets and drive pistons preferably axially penetrate an opening of the drive member that is open toward the receiving body.
  • the drive piston is expediently guided coaxially in a through bore of the racket. The strokes of the racket and the driving force of the driving piston can thus be transferred directly and centrally to the receiving body or to the striker or the fastening element.
  • the fastening elements which can be driven in with the device and which can be connected to the receiving body in a rotationally locking and axially displaceable manner preferably have a drilling head which adjoins the shaft in the driving-in direction and a load engaging means which connects to the shaft counter to the driving-in direction and a rotary driving means which serves for the rotationally locking connection to the receiving body.
  • the device is used to drive in fastening elements, which are expediently provided with a drill head which adjoins the shaft in the drive-in direction and a load-engaging means which connects to the shaft against the drive-in direction and a rotary driving means.
  • the drilling head of these fastening elements can be integrally formed on the shaft or, for example, can be formed by an inserted hard metal plate or a crown made of wear-resistant material.
  • a threaded section or a head projecting beyond the diameter of the shaft can serve as the load application means.
  • a part with a polygonal cross-section can be suitable as a rotary driving means.
  • the device according to FIG. 1 has a rotary drilling device 1 and a bolt setting device 2.
  • a flange-like mouth part 3 of the device is detachably coupled via a bayonet connection 4 to a carrier 5 of the rotary drilling device 1.
  • a ball bearing 6 is seated in the carrier 5 and is axially supported in the driving-in direction, that is to the left in FIG. 1, by two locking washers 7, 8.
  • the ball bearing 6 serves for the rotatable mounting of a drive element 9, which receives a receiving body 11 for a fastening element in the form of a threaded bolt 12.
  • a striking block 13 which is supported on the back of a shoulder 11b of the receiving body 11, is slidably mounted in a central recess 11a.
  • a cross pin 14 is provided, which is stuck in the striker 13 and engages in slots 11c of the receiving body 11 and longitudinal grooves 9a of the drive member 9.
  • a receiving bore 13a which is open in the driving-in direction and a driver 13b which is designed as a square recess.
  • the threaded bolt 12 projects with the threaded portion 12a into the receiving bore 13a and with a square extension 12b in a rotationally locking manner in the driver 13b.
  • the shaft 12c of the threaded bolt 12 carries a guide washer 12d. At the free end of the shaft 12c there is a drill head 12e.
  • a permanent magnet 15 serves to hold the threaded bolt 12 axially in the mouth part 3. Instead of a permanent magnet 15, mechanical holding means can also be provided.
  • the drive element 9 carries a bevel gear ring 9c pointing counter to the driving direction and a cam ring 9d with sawtooth-shaped cams.
  • a support ring 16 which is partially open in the circumferential direction is fixed in the carrier 5. This is based on the driving direction a racket 17 under the force of a compression spring 18.
  • the racket 17 also has a cam ring 17a with sawtooth-shaped cams, which cooperates with the cam ring 9d. When the device is at rest, the cams of one cam ring protrude into the recesses of the other cam ring.
  • a neck of the racket 17 pointing in the driving-in direction partially penetrates an opening 9e of the drive element 9 and projects into a bore 9b which receives the drive body 11.
  • the latter has a longitudinal groove 17b into which a pin 19 protrudes.
  • the pin 19 is fixed in the carrier 5 and passes through a ring 21.
  • a motor housing 22 and a receptacle body 23 for batteries 24, which serve to supply an electric motor 25, are attached to the carrier 5.
  • the rotor shaft 26 of the electric motor 25 is guided in bearings 27, 28 and carries a bevel pinion 29 at the end.
  • the bevel pinion 29 meshes with the bevel gear ring 9c.
  • the bolt-setting device 2 has a two-part housing part 31 with a handle 32 attached to it . contain.
  • a support tube 33 protrudes from the housing part 31, which can be moved relative to the latter, and is coupled to the support 5 via a bayonet connection 34 in order to release the bolt-setting device 2 from the rotary drilling device 1.
  • a guide tube 35 extends telescopically into the support tube 33 and is pressed against a base 33 a by spring force. To limit the axial displaceability of the guide tube 35 with respect to the support tube 33, the guide tube 35 is provided with flats 35a axially delimited by shoulders, on which a U-shaped bracket 36 engages with legs 36a.
  • the bracket 36 is axially immovable in slots 33b.
  • the opposite end of the Guide tube 35 has a bearing 35b for powder propellant charges.
  • the bearing 35b opens into a guide bore 35c, in which a driving piston 37 with a head 37a is slidably and sealingly mounted.
  • a shaft 37b of the driving piston 37 passes centrally through the bottom 33a and an axial through-hole 17c of the racket 17. The end of the driving piston 37 on the driving direction side is exposed to the rear end face of the striker 13 due to the recess 11a.
  • the housing part 31 with the end face 31a pointing in the driving-in direction is at a distance from a support surface 5a of the carrier 5 pointing counter to the driving-in direction.
  • the latter is pressed against a material with the device and the motor 25 is switched on.
  • the switched-on motor 25 sets the drive element 9 in rotary motion, which is also conveyed to the receiving body 11 and the striking block 13 via the transverse pin 14.
  • the drivers 13b initiate the rotational movement in the threaded bolt 12.
  • the rotation of the drive member 9 also causes the cam sprocket 9d to run against the cam sprocket 17a of the racket 17, which is stationary in the direction of rotation.
  • the racket 17 executes a reciprocating movement and successively strikes the receiving body 11.
  • the blows imparted to the receiving body 11 are transmitted via the shoulder 11b to the striker 13, which conveys them to the threaded bolt 12 in order to carry out the drilling process.
  • the motor 25 is switched off.
  • the powder propellant charge is then ignited, thereby accelerating the propelling piston 37 against the striker 13.
  • the latter drives the threaded bolt 12 with the front region of the shaft 12c through the floor by running up the driving piston 37 the blind hole previously created by this into the material.
  • the driving process is now complete.
  • FIG. 2 The front region shown in FIG. 2 enables nails 41 to be accommodated instead of threaded bolts 12 according to FIG. 1.
  • the other parts of the device correspond to those according to FIG. 1 and therefore have the same reference numerals.
  • a receptacle body 42 is displaceable in the drive member 9 and is connected to the drive member 9 in a rotationally locking manner by means of cross pins 43 which are stuck in the receptacle body 42 and engage in the longitudinal grooves 9a of the drive member 9.
  • the receiving body 42 is centrally penetrated by a recess 42a which allows the shaft 37b of the drive piston 37 to pass through. Contrary to the driving-in direction, the receiving body 42 is supported on the racket 17.
  • the receiving body 42 On the driving direction side, the receiving body 42 has catches 42b in the form of a polygonal contour for the rotational engagement of the nail head 41a having a corresponding polygonal contour.
  • a rondelle 41b which sits on the shaft 41c of the nail 41 and engages in the receiving body 42, serves as the second guide for the nail 41.
  • a drill head 41d is provided at the free end of the shaft 41c.
  • the driving of the nail 41 into a material takes place in the first phase by a drilling process with superimposed intermittent action.
  • the rotary movement is transmitted from the drive member 9 via the cross pins 43 to the receiving body 42 and through the driver 42b to the nail 41.
  • Intermittent blows conveyed by the striker 17 to the receiving body 42 are introduced into the nail 41 via a shoulder 42c on which the nail head 41a is supported.
  • the nail 41 is completely driven into the material by the powder force with the shaft, the driving piston 37 with the shaft 37b reaching through the recess 42a and striking the nail 41.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Drilling Tools (AREA)

Claims (10)

  1. Outil pour enfoncer des éléments de fixation (12, 41) dans des matériaux durs tels que du béton, de la maçonnerie, des roches ou analogues, caractérisé en ce qu'il comprend un dispositif de perçage rotatif (1) et un dispositif de pose de chevilles (2).
  2. Outil selon la revendication 1, caractérisé en ce qu'il comprend un corps de réception (11, 42) servant à recevoir les éléments de fixation (12, 41) de manière solidaire en rotation et déplaçable dans le sens axial.
  3. Outil selon la revendication 2, caractérisé en ce que le corps de réception (11, 42) comprend des tocs d'entraînement (13b, 42b) pour la réception solidaire en rotation des éléments de fixation (12, 41).
  4. Outil selon l'une des revendications 2 ou 3, caractérisé en ce que le corps de réception (11, 42) est couplé de manière solidaire en rotation et déplaçable dans le sens axial avec un organe d'entraînement (9) mis en rotation par le dispositif de perçage rotatif (1).
  5. Outil selon la revendication 4, caractérisé en ce que le corps de réception (11, 42) peut être sollicité par un frappeur (17) d'un mécanisme de percussion à cames du dispositif de perçage rotatif (1).
  6. Outil selon l'une des revendications 2 à 5, caractérisé en ce que le corps de réception (11, 42) présente un évidement (11a, 42a) pour le passage d'un élément (37b) d'un piston poussoir (37) du dispositif de pose de chevilles (2) qui peut être mis en mouvement axial au moyen de gaz sous haute pression.
  7. Outil selon la revendication 6, caractérisé en ce que dans l'évidement (11a) est prévu un percuteur (13) couplé de manière solidaire en rotation et déplaçable dans le sens axial avec le corps de réception (11) et pouvant être sollicité par le piston poussoir (37).
  8. Outil selon la revendication 7, caractérisé en ce que le percuteur (13) comprend des tocs d'entraînement (13b) pour la réception solidaire en rotation des éléments de fixation (12).
  9. Outil selon l'une des revendications 5 à 8, caractérisé en ce que le frappeur (17) et le piston poussoir (37) traversent axialement une ouverture (9e) de l'organe d'entraînement (9) ouverte en direction du corps de réception (11, 42).
  10. Mise en oeuvre de l'outil selon l'une des revendications 1 à 9 pour l'enfoncement d'éléments de fixation (12, 41) comprenant une tête de perçage (12e, 41d) raccordée à la tige dans la direction de pose, ainsi qu'un moyen d'application de charge (12a, 41a) et un moyen d'entraînement en rotation (12b, 41a) raccordés à la tige dans le sens opposé à la direction de pose.
EP91810108A 1990-03-19 1991-02-18 Outillage pour enfoncer des éléments de fixation dans des matières dures Expired - Lifetime EP0449766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008750A DE4008750A1 (de) 1990-03-19 1990-03-19 Geraet zum eintreiben von befestigungselementen in harte werkstoffe
DE4008750 1990-03-19

Publications (2)

Publication Number Publication Date
EP0449766A1 EP0449766A1 (fr) 1991-10-02
EP0449766B1 true EP0449766B1 (fr) 1993-01-07

Family

ID=6402540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810108A Expired - Lifetime EP0449766B1 (fr) 1990-03-19 1991-02-18 Outillage pour enfoncer des éléments de fixation dans des matières dures

Country Status (13)

Country Link
US (1) US5161624A (fr)
EP (1) EP0449766B1 (fr)
JP (1) JP2971606B2 (fr)
KR (1) KR100194896B1 (fr)
CN (1) CN1019650B (fr)
AT (1) ATE84351T1 (fr)
AU (1) AU636014B2 (fr)
CA (1) CA2038483A1 (fr)
DE (2) DE4008750A1 (fr)
DK (1) DK0449766T3 (fr)
ES (1) ES2038062T3 (fr)
FI (1) FI101866B (fr)
PL (1) PL164711B1 (fr)

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US5730230A (en) * 1995-08-15 1998-03-24 Sisler; John S. Rotary percussion drill
DE19833650A1 (de) * 1998-07-25 2000-01-27 Hilti Ag Handbohrgerät
DE60239639D1 (de) * 2002-07-31 2011-05-12 Chiesi Farma Spa Pulverinhalator
CN100424006C (zh) * 2005-11-21 2008-10-08 江苏索普（集团）有限公司 钙法生产高效漂粉精
CN100424005C (zh) * 2005-11-21 2008-10-08 江苏索普（集团）有限公司 钙法生产高效漂粉精
EP2104593A4 (fr) * 2006-12-29 2011-06-29 Illinois Tool Works Outil de fixation sans fil avec fonctions de rotation et d'entraînement d'éléments de fixation
US8602285B2 (en) * 2008-06-06 2013-12-10 Black & Decker Anchor installation tool
JP5590505B2 (ja) * 2009-09-30 2014-09-17 日立工機株式会社 打込機
US8490516B2 (en) * 2009-09-30 2013-07-23 Hitachi Koki Co., Ltd. Screw driving machine having combustion-type power mechanism and electric power mechanism
JP5344246B2 (ja) * 2009-09-30 2013-11-20 日立工機株式会社 打込機
US20110198383A1 (en) * 2010-02-12 2011-08-18 Fernando Masas Apparatus for installing explosively driven fasteners and fasteners for use therewith
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
DE102010030098A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Eintreibvorrichtung
DE102010062107A1 (de) * 2010-11-29 2012-05-31 Robert Bosch Gmbh Hammerschlagwerk
CN103213108B (zh) * 2012-01-21 2015-04-22 苏州宝时得电动工具有限公司 手持式工具
CN104002279B (zh) * 2014-06-18 2017-03-15 四川南山射钉紧固器材有限公司 连续射钉、自动复位式射钉器
US11453107B2 (en) * 2020-02-21 2022-09-27 Joe Lin Apparatus for installing explosively driven fasteners
KR102500749B1 (ko) 2021-10-01 2023-02-20 계양전기 주식회사 전동햄머

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US3385378A (en) * 1966-06-22 1968-05-28 Robert D. Weber Automatic air operated installation gun
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Also Published As

Publication number Publication date
DK0449766T3 (da) 1993-04-05
JPH04223881A (ja) 1992-08-13
US5161624A (en) 1992-11-10
FI101866B1 (fi) 1998-09-15
ATE84351T1 (de) 1993-01-15
KR100194896B1 (ko) 1999-06-15
EP0449766A1 (fr) 1991-10-02
DE59100028D1 (de) 1993-02-18
FI911304A0 (fi) 1991-03-18
JP2971606B2 (ja) 1999-11-08
AU636014B2 (en) 1993-04-08
CN1054929A (zh) 1991-10-02
FI911304A (fi) 1991-09-20
AU7290391A (en) 1991-09-19
KR910016446A (ko) 1991-11-05
CA2038483A1 (fr) 1991-09-20
ES2038062T3 (es) 1993-07-01
CN1019650B (zh) 1992-12-30
PL164711B1 (pl) 1994-10-31
FI101866B (fi) 1998-09-15
DE4008750A1 (de) 1991-09-26

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